import java.util.Scanner;

public class d064 {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		
		String input, output;
		int n;
		
		while(sc.hasNext()) {
			input = sc.nextLine();
			n = Integer.parseInt(input);
			
			output = "";
			
			if(n % 2 == 0)
				output += "Even";
			else
				output += "Odd";
			
			System.out.println(output);
		}
	}
	
}